Polymer Composites最新文献_第3页

A Novel Suspension for Rapid, Continuous PEEK Impregnation of Sized Large‐Tow Carbon Fibers 一种用于大束大尺寸碳纤维快速连续PEEK浸渍的新型悬浮液

Polymer Composites Pub Date : 2025-12-05 DOI: 10.1002/pc.70711

Qilong Wang, Hongxiao Wang, Dengjie Zhu, Hongchen Li, Hongbin Niu, Jiangtao Zhang

{"title":"A Novel Suspension for Rapid, Continuous <scp>PEEK</scp> Impregnation of Sized Large‐Tow Carbon Fibers","authors":"Qilong Wang, Hongxiao Wang, Dengjie Zhu, Hongchen Li, Hongbin Niu, Jiangtao Zhang","doi":"10.1002/pc.70711","DOIUrl":"https://doi.org/10.1002/pc.70711","url":null,"abstract":"ABSTRACT Carbon fiber reinforced polyetheretherketone (CF/PEEK) composites possess excellent mechanical properties and thermal stability. However, during the processing of PEEK with large‐tow carbon fibers, there are challenges such as dense fiber arrangement and high viscosity penetration of the resin, which usually require complex fiber spreading or surface treatment. In this work, a novel aqueous suspension‐based impregnation process is developed to rapidly and continuously impregnate epoxy‐sized large‐tow carbon fibers with PEEK without any prior desizing or tow spreading. The suspension utilizes a multicomponent gradient‐evaporation solvent system (deionized water with ethanol, ethylene glycol, and NMP) combined with synergistic surfactants (PVP K30, PEG‐400, and Tween 80) to dramatically improve resin powder dispersion stability and lower interfacial tension. The addition of nano‐SiO 2 and a silane coupling agent (KH560) further enhances fiber–matrix interfacial bonding. Zeta potential analysis confirmed that the optimized suspension (pH 9, 1.5 wt% surfactants) achieved high stability with no observable sedimentation for 1 h, and contact angle tests showed effective wetting on sized fibers (only 2° difference from desized). Using a custom continuous impregnation line, 48K tows were uniformly coated and consolidated at 1 m/min line speed. The resulting prepregs exhibited uniform resin distribution with fiber volume fractions of approximately 35% and porosity below 1%. A three‐hour continuous production run demonstrated consistent prepreg quality over time. These results highlight that the proposed multicomponent suspension and process enable fast, continuous manufacturing of high‐quality CF/PEEK prepregs from large‐tow fibers without additional fiber treatment, representing a significant advancement in scalable thermoplastic composite fabrication.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70711","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and Molecular Simulation Study on the Effect of γ‐Aminopropyl Triethoxysilane‐Modified Nano Silica on the Mechanical and Dielectric Properties of Polyimide Composites γ -氨基丙基三乙氧基硅烷改性纳米二氧化硅对聚酰亚胺复合材料力学和介电性能影响的实验和分子模拟研究

Polymer Composites Pub Date : 2025-12-05 DOI: 10.1002/pc.70709

Xinyue Hu, Hong Ruan, Yuqi Li

{"title":"Experimental and Molecular Simulation Study on the Effect of γ‐Aminopropyl Triethoxysilane‐Modified Nano Silica on the Mechanical and Dielectric Properties of Polyimide Composites","authors":"Xinyue Hu, Hong Ruan, Yuqi Li","doi":"10.1002/pc.70709","DOIUrl":"https://doi.org/10.1002/pc.70709","url":null,"abstract":"ABSTRACT The synthesis of polyimides with low dielectric constants, high wear resistance, and excellent mechanical properties is crucial to expanding their applications in aerospace and microelectronics. This study employed γ‐aminopropyl triethoxysilane to modify the surface of silica, yielding a modified silica/polyimide nanocomposite (KSPI). Molecular dynamics simulations were conducted to evaluate the performance of the KSPI, incorporating the microstructural morphology and interface interaction energy changes. Results demonstrated that adding 0.5 wt.% APS‐modified silica improved interfacial bonding, as well as mechanical and tribological properties. Compared with pure polyimide, the tensile strength of KSPI increased by 35.99%, whereas the dielectric loss and wear rate decreased by 52.4% and 54.03%, respectively. Simulations comparing KSPI and silica/polyimide systems revealed a 24.15% reduction in the solubility parameter similarity coefficient R and a 77.02% decrease in the free volume for KSPI, indicating superior compatibility owing to its reaction with silica hydroxyl groups to form SiOSi bonds, reduce hydrophilicity, and inhibit agglomeration. γ‐aminopropyl triethoxysilane modification improves silica dispersion, enhancing the thermal resistance, tensile mechanical properties, and dielectric properties of the KSPI. This study established a robust preparation method for high‐performance polyimide composites and elucidated how interface compatibility regulates polyimide composite performance employing combined theoretical analysis and experimental validation.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 9","pages":"8550-8562"},"PeriodicalIF":0.0,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving Interface and Mechanical Properties of CFRPs by Surface Modification of Carbon Fibers Using Tannic Acid‐Fe ³⁺ ‐ (3‐Aminopropyl)triethoxysilane Complexes 单宁酸- fe3 + -（3 -氨基丙基）三乙氧基硅烷配合物对碳纤维表面改性改善cfrp的界面和力学性能

Polymer Composites Pub Date : 2025-12-04 DOI: 10.1002/pc.70710

Noel Babu, Maleck Massou, Chenggao Li, Huigang Xiao, Guijun Xian

{"title":"Improving Interface and Mechanical Properties of <scp>CFRPs</scp> by Surface Modification of Carbon Fibers Using Tannic Acid‐Fe 3+ ‐ (3‐Aminopropyl)triethoxysilane Complexes","authors":"Noel Babu, Maleck Massou, Chenggao Li, Huigang Xiao, Guijun Xian","doi":"10.1002/pc.70710","DOIUrl":"https://doi.org/10.1002/pc.70710","url":null,"abstract":"ABSTRACT Inspired by mussel adhesion, researchers have explored polydopamine (PDA)‐based sizing solutions to enhance the surface chemistry and texture of carbon fibers. However, PDA‐based solutions face challenges associated with high costs, longer fiber treatment times, and scalability concerns for industrial adoption. Recently, tannic acid, an abundant natural polyphenol, has emerged as an alternative capable of forming similar chemical interactions, such as Michael addition, Schiff‐base reactions, and coordination complexes with metal ions, and so forth, as in PDA. In this work, tannic acid‐Fe 3+ ‐ (3‐aminopropyl)triethoxysilane complexes were deposited on the CF surface by a facile self‐assembly process in 15 min. The deposited nano‐sized aggregates increased reactive surface functional groups on the fiber and enhanced its surface roughness. As a result, the interlaminar shear strength, flexural strength, and modulus of unidirectional CFRPs, reinforced with treated fibers, increased by 35%, 30%, and 12.4%, respectively, compared to those with as‐received CF. The impact load‐bearing capacity of CFRPs with a modified interface also increased by 19.8% and their residual compressive strength after impact increased by 20.8%. This approach to improving the surface characteristics of CF can offer a cost‐effective solution to enhance the performance of CFRPs.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70710","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conversion Rate and Mechanical Properties of Polymethyl Methacrylate ( PMMA ) and Its Biaxial Glass Fiber Composites for Wind Turbine Blade 风电叶片用聚甲基丙烯酸甲酯（PMMA）及其双轴玻璃纤维复合材料的转化率和力学性能

Polymer Composites Pub Date : 2025-12-03 DOI: 10.1002/pc.70696

Yiru Zhang, Chong Zhang, Sen Wang, Yafei Gao, Lei Zhou, Jianmin Zhang

{"title":"Conversion Rate and Mechanical Properties of Polymethyl Methacrylate ( <scp>PMMA</scp> ) and Its Biaxial Glass Fiber Composites for Wind Turbine Blade","authors":"Yiru Zhang, Chong Zhang, Sen Wang, Yafei Gao, Lei Zhou, Jianmin Zhang","doi":"10.1002/pc.70696","DOIUrl":"https://doi.org/10.1002/pc.70696","url":null,"abstract":"ABSTRACT In this study, benzoyl peroxide (BPO) and N, N ‐dimethylaniline (DMA) were employed as a redox initiator pair to initiate the polymerization of methyl methacrylate (MMA) to shorten the demolding time and save energy consumption. The conversion rate over time aligned with typical kinetic profiles of radical polymerization, showing rapid initial growth followed by a slow termination phase. Polymethyl methacrylate (PMMA) obtained with low initiator concentration exhibited higher molecular weight and superior mechanical properties (tensile strength: 63.1 MPa; bending strength: 118.1 MPa). A lower polymerization temperature (5°C) significantly influenced the molecular weight distribution of PMMA, resulting in an approximately 38% decrease in tensile strength and a 51% reduction in bending strength compared to samples cured at 35°C. Additionally, PMMA/biaxial glass fiber (PMMA/GF) composites were prepared, demonstrating better mechanical properties than epoxy/GF. Tensile properties were highly dependent on the fiber orientation: the ± 45° configuration showed a strength of 200.0 MPa and modulus of 13.49 GPa, indicating lower strength but higher toughness, whereas the 0°/90° configuration exhibited higher values of 479.2 MPa and 21.3 GPa, suggesting higher strength but lower toughness. Finally, a 5‐kW wind turbine blade was fabricated by vacuum assisted resin infusion to validate the feasibility of the PMMA/MMA system as a liquid binary resin.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Conductivity Modeling and Characterization for Woven Fabric Polymer Composites Modified With Nanofillers 纳米填料改性机织高聚物复合材料的导热建模与表征

Polymer Composites Pub Date : 2025-11-25 DOI: 10.1002/pc.70674

Xuejuan Niu, Zheng Lin, Y. Jun Xu

{"title":"Thermal Conductivity Modeling and Characterization for Woven Fabric Polymer Composites Modified With Nanofillers","authors":"Xuejuan Niu, Zheng Lin, Y. Jun Xu","doi":"10.1002/pc.70674","DOIUrl":"https://doi.org/10.1002/pc.70674","url":null,"abstract":"ABSTRACT Woven fabric polymer (WFP) composites inherently possess low thermal conductivity, which limits their applications in thermal management. Three types of nanofillers, including particle‐type nano zinc oxide (nano‐ZnO), rod‐type carbon nanotubes (CNTs), and flake‐type graphene nanoplatelets (GNPs), are selected based on their geometrical morphologies. Their effects on the thermal conductive characteristics of WFP composites are systematically analyzed. Based on the effective medium theory (EMT), an analytical method is proposed to predict the effective thermal conductivity (ETC) of WFP material systems. This strategy quantifies the influence dimensions and mass fraction of nanofillers on the ETC of material systems. Single‐sided constant‐temperature (SSCT) heat transfer experiments show that the average steady‐state (ASS) temperature of the specimens increases with increasing nanofiller mass fraction, reaching enhancements of 18.71% for 3 wt.% GNPs, 10.45% for 3 wt.% CNTs, and 2.57% for 3 wt.% nano‐ZnO. The effectiveness of the analytical method is validated through finite element (FE) analysis and experiments. The interphase thermal conduction models are established based on the geometrical morphologies of the nanofillers and the interphase bonding states in WFP composites, which explain the heat transfer mechanism of WFP composites modified with different nanofillers.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mussel‐Inspired Polydopamine Coating for Damage‐Free Anchoring of Carbon Black to Improve the Interface Performance of Carbon Fiber/Resin Composites 贻贝启发聚多巴胺涂层用于炭黑的无损伤锚定，以提高碳纤维/树脂复合材料的界面性能

Polymer Composites Pub Date : 2025-11-22 DOI: 10.1002/pc.70671

Dongliang Wu, Pengtu Zhang, Wenyu Zhu, Chao Fu, Qingguo Shao, Lijuan Guo, Guodong Wang, Shiling Yuan

{"title":"Mussel‐Inspired Polydopamine Coating for Damage‐Free Anchoring of Carbon Black to Improve the Interface Performance of Carbon Fiber/Resin Composites","authors":"Dongliang Wu, Pengtu Zhang, Wenyu Zhu, Chao Fu, Qingguo Shao, Lijuan Guo, Guodong Wang, Shiling Yuan","doi":"10.1002/pc.70671","DOIUrl":"https://doi.org/10.1002/pc.70671","url":null,"abstract":"ABSTRACT Introducing carbon black (CB) into the fiber/resin interface region can further enhance the mechanical performance of carbon fiber reinforced polymer composite (CFRP). However, traditional methods of introducing CB often suffer from issues such as complex operations, excessive consumption of chemical agents and hidden harm to fiber strength. Inspired by the adhesion principle of mussels, a simple, green and efficient carbon fiber surface modification strategy has been proposed. The strategy leveraged the high adhesion and secondary reaction properties of dopamine (DA), utilizing non‐covalent and covalent cross‐linking interactions between polydopamine (PDA) and CB to construct a PDA/CB coating on the fiber surface. Due to the repairing effect of the PDA/CB coating on fiber surface defects and pores, as well as the constraint effect of covalent and non‐covalent interactions between PDA and CB, CF‐PDA/CB ultimately yielded a 13.45% enhancement in tensile strength (TS) compared to desized CF. Moreover, compared with desized CF composite, the interlaminar shear strength (ILSS) and interfacial shear strength (IFSS) of the CF‐PDA/CB composite increased by 32.01% and 41.00%. This was attributed to the rough and highly reactive PDA/CB coating, which not only achieved excellent wetting properties between fiber and resin to enhance interfacial adhesion, thereby strengthening mechanical interlocking and chemical bonding interactions between the two, but also expanded the interfacial transition zone to promote stress transfer and energy dissipation. This research provides a promising approach for the recycling of carbon resources from scrap tires and the high‐value application of CB in high‐performance composites.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Construction of Polysiloxane‐Grafted Carbon Nanotubes in PA6 Matrix: Interfacial Structure Tailoring and Enhanced Load Transfer 聚硅氧烷-接枝碳纳米管在PA6基体中的原位构建：界面结构裁剪和增强负载传递

Polymer Composites Pub Date : 2025-11-21 DOI: 10.1002/pc.70661

Huanhuan Wang, Qi Qu, Jun Yang, Qingbin Tian, Jin Wang, Ji-Ming Gao, Yanping Liu, Yan He

{"title":"In Situ Construction of Polysiloxane‐Grafted Carbon Nanotubes in <scp>PA6</scp> Matrix: Interfacial Structure Tailoring and Enhanced Load Transfer","authors":"Huanhuan Wang, Qi Qu, Jun Yang, Qingbin Tian, Jin Wang, Ji-Ming Gao, Yanping Liu, Yan He","doi":"10.1002/pc.70661","DOIUrl":"https://doi.org/10.1002/pc.70661","url":null,"abstract":"ABSTRACT The practical application of polyamide 6 (PA6) in structural engineering is hindered by its limited toughness and weak interfacial interaction with reinforcing fillers. Carbon nanotubes (CNTs) have been widely explored to overcome these deficiencies, yet their strong tendency to agglomerate and poor compatibility with PA6 restrict efficient load transfer. Herein, we propose a solvent‐free one‐pot in situ polymerization strategy that simultaneously functionalizes carboxylated CNTs with bis(3‐aminopropyl)‐terminated polydimethylsiloxane (APDMS) and integrates them into PA6 during ε‐caprolactam polymerization. Compared with neat PA6, the nanocomposites exhibited increases of 16.1% in tensile strength, 21.9% in flexural strength, and 10.3% in notched impact strength. These improvements originate from a chemically bridged siloxane interphase, in which APDMS provides dual amino groups for covalent coupling and a flexible backbone for interfacial stress dissipation. The proposed approach eliminates the need for organic solvents and multi‐step procedures, providing an environmentally friendly and scalable route to tailor interfacial structures. This work not only demonstrates a balanced enhancement in stiffness, strength, and toughness, but also provides mechanistic insights into interphase engineering for advanced thermoplastic nanocomposites.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70661","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Aramid Nanofibers‐Reinforced Epoxy All‐Organic Composites With Enhanced Thermal Conductivity and Suppressed Thermal Expansion 芳纶纳米纤维增强环氧树脂全有机复合材料的研究

Polymer Composites Pub Date : 2025-11-18 DOI: 10.1002/pc.70638

Fan Yang, Zhiwei Hu, Runze Zhang, Pin Gao, Yunchuan Xie

{"title":"Study on Aramid Nanofibers‐Reinforced Epoxy All‐Organic Composites With Enhanced Thermal Conductivity and Suppressed Thermal Expansion","authors":"Fan Yang, Zhiwei Hu, Runze Zhang, Pin Gao, Yunchuan Xie","doi":"10.1002/pc.70638","DOIUrl":"https://doi.org/10.1002/pc.70638","url":null,"abstract":"ABSTRACT In this study, the high‐performance all‐organic epoxy composites, aramid nanofibers/phenol‐hydroxy polyphenylene ether resin/epoxy resin (ANFs/SA90/EP), were fabricated, and a systematic investigation was conducted on their dielectric, mechanical, thermal conductivity, and thermal expansion properties. Firstly, SA90 was introduced to modify epoxy resin, leading to a remarkable improvement in the toughness and thermal resistance of epoxy resin. Subsequently, ANFs were incorporated into the modified matrix to further improve the thermal conductivity and thermal expansion properties. The results indicated that the bending strength, modulus and thermal conductivity of the composite material reached 145 MPa, 3.48 GPa and 0.224 W·m −1 ·K −1 , respectively, representing an increase of 12%, 10% and 30% compared to the pure epoxy. Meanwhile, the coefficient of thermal expansion (CTE) of the composite material dropped to 77.3 ppm·K −1 , a reduction of about 25% compared with pure epoxy. These significant improvements in performance are mainly attributed to the strong hydrogen bonding interactions formed between ANFs and the matrix, which significantly enhance the interfacial compatibility, thereby effectively improving the mechanical and thermal expansion properties. Moreover, the incorporation of ANFs established efficient thermal conduction pathways within the composite material, significantly enhancing its thermal conductivity. In addition, the incorporation of ANFs further optimized the dielectric properties of the composite material. At 1 MHz, the dielectric loss was reduced to merely 0.015, representing a decrease of approximately 32% compared to pure epoxy. This study provides innovative ideas and effective strategies for the development of all‐organic epoxy packaging materials.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 8","pages":"7510-7521"},"PeriodicalIF":0.0,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser Induced Graphene for EMI Shielding and Damage Detection in Kevlar/Basalt Hybrid Composite Laminates 激光诱导石墨烯用于Kevlar/玄武岩复合材料层合板的电磁干扰屏蔽和损伤检测

Polymer Composites Pub Date : 2025-11-06 DOI: 10.1002/pc.70633

Weifu Sun, Gaojian Lin

{"title":"Laser Induced Graphene for <scp>EMI</scp> Shielding and Damage Detection in Kevlar/Basalt Hybrid Composite Laminates","authors":"Weifu Sun, Gaojian Lin","doi":"10.1002/pc.70633","DOIUrl":"https://doi.org/10.1002/pc.70633","url":null,"abstract":"ABSTRACT Basalt fiber (BF) reinforced polymer composites are widely used in military, construction, and marine engineering fields. However, the intrinsic electrical insulation of basalt fiber restricts its use in functional composite materials, particularly in applications such as electromagnetic interference (EMI) shielding. Laser‐induced graphene (LIG) is a form of three‐dimensional carbon nanomaterial, which could be generated by scribing a laser on carbonaceous precursors. This study utilizes laser‐induced graphene technology to generate graphene directly on the surface of Kevlar fabrics. The LIG‐modified Kevlar fabrics were then stacked with basalt fabrics to fabricate fiber‐reinforced epoxy hybrid laminates. The impact of LIG film insertion on the interlaminar fracture toughness of Kevlar/basalt hybrid laminates was evaluated using double cantilever beam tests. The electromagnetic shielding performance of the hybrid laminates with varying numbers of graphene layers was investigated. Raman spectroscopy confirmed the formation of multilayer graphene on the laser‐etched Kevlar fabrics. The EMI shielding effectiveness of the basalt fiber laminates increased to ~20 dB after three layers of LIG‐modified Kevlar were inserted, and to ~55 dB after seven layers of LIG‐modified Kevlar were inserted, for the X‐band frequency range. Damage localization within the hybrid laminates was achieved by patterning LIG films and monitoring changes in electrical resistance.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 8","pages":"7435-7448"},"PeriodicalIF":0.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhancement of Si ₃ N ₄ ‐on‐ Ti ₃ C ₂ Tx Structure to Lubrication and Anti‐Corrosion Performance of Composite Coating si3n4 - on - ti3c2tx结构对复合涂层润滑和抗腐蚀性能的增强

Polymer Composites Pub Date : 2025-10-30 DOI: 10.1002/pc.70607

Changhua Li, Chao Zhang, Jianxiu Hu, Wei Ren, Jing Zhang, Yi He

{"title":"Enhancement of <scp> Si 3 N 4 </scp> ‐on‐ <scp> Ti 3 C 2 Tx </scp> Structure to Lubrication and Anti‐Corrosion Performance of Composite Coating","authors":"Changhua Li, Chao Zhang, Jianxiu Hu, Wei Ren, Jing Zhang, Yi He","doi":"10.1002/pc.70607","DOIUrl":"https://doi.org/10.1002/pc.70607","url":null,"abstract":"ABSTRACT This research reported the outstanding composite coating for anti‐corrosion and anti‐wear applications doped with Ti 3 C 2 Tx‐(3‐aminopropyltriethoxysilane, APTES)‐ silicon nitride (Si 3 N 4 ) fortifier, which was prepared via the bridge linking effect of the silane coupling agent APTES between Ti 3 C 2 Tx and Si 3 N 4 particles. Taking advantage of the lubricating property of Ti 3 C 2 Tx, the high hardness of Si 3 N 4 and the coupling effect of APTES, the interfacial strength between the composite filler and resin matrix was enhanced, achieving the integrated multi‐functional properties of lubrication, wear resistance and corrosion prevention for the composite coating. Compared to the epoxy coating sample, adhesion strength, tensile strength and hardness showed obvious improvement, leading to excellent friction performance and anti‐wear property, which were demonstrated through an ultra‐low coefficient of friction (COF) of 0.046 and small wear loss of 18.6 mg (CS‐17 abrasive wheel, 1000 revolutions, load of 9.8 N). Moreover, the composite coating exhibited satisfactory anti‐corrosion capacity, which could be illustrated by the impedance modulus at 0.01 Hz (| Z | 0.01Hz ) remaining at 1.07 × 10 8 Ω cm 2 after the accelerated cyclic electrochemical test (−3.0 V, 30 min) of 6 cycles. The coating reported in this study made use of the advantages of two‐dimensional MXene and zero‐dimensional silicon nitride, and had remarkable breakthroughs in anti‐corrosion and wear properties, which provided a simple and feasible idea for the optimization of coatings.","PeriodicalId":510403,"journal":{"name":"Polymer Composites","volume":"47 8","pages":"7064-7077"},"PeriodicalIF":0.0,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/pc.70607","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147919243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0